PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-09:12:50
G01     50.2           25.2                4.7 +/-    2.00       9.1 +/-    2.00  0.040 / 0.050
G06     176.8          23.6                6.8 +/-    1.64      13.8 +/-    1.64  0.040 / 0.050
G07     145.1          13.3                5.3 +/-    2.83      13.7 +/-    2.83  0.070 / 0.130
G11     45.5           19.0                2.4 +/-    1.15       5.3 +/-    1.15  0.060 / 0.180
G13     250.9          32.2                5.7 +/-    1.06       9.5 +/-    1.06  0.030 / 0.040
G15     284.7          16.0                4.3 +/-    2.92      10.4 +/-    2.92  0.030 / 0.030
G17     296.8          79.0                6.4 +/-    0.85       6.5 +/-    0.85  0.040 / 0.060
G19     243.7          60.7                7.7 +/-    1.11       8.7 +/-    1.11  0.050 / 0.060
G28     37.8           58.0                4.6 +/-    0.51       5.3 +/-    0.51  0.120 / 0.290
G30     149.7          45.9                8.2 +/-    1.18      10.9 +/-    1.18  0.090 / 0.310